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feat: permit leading 0s in exp parts of floats

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This is an unreleased feature of toml language, but is merged into
toml-lang/toml:master.
This commit is contained in:
ToruNiina
2019-08-28 16:02:10 +09:00
parent 7a1b5bd64e
commit 1acf87679e
1 changed files with 4 additions and 2 deletions
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6
toml/lexer.hpp
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@@ -63,11 +63,13 @@ using lex_integer = either<lex_bin_int, lex_oct_int, lex_hex_int, lex_dec_int>;
using lex_inf = sequence<character<'i'>, character<'n'>, character<'f'>>;
using lex_nan = sequence<character<'n'>, character<'a'>, character<'n'>>;
using lex_special_float = sequence<maybe<lex_sign>, either<lex_inf, lex_nan>>;
using lex_exponent_part = sequence<either<character<'e'>, character<'E'>>, lex_dec_int>;
using lex_zero_prefixable_int = sequence<lex_digit, repeat<either<lex_digit,
sequence<lex_underscore, lex_digit>>, unlimited>>;
sequence<lex_underscore, lex_digit>>, unlimited>>;
using lex_fractional_part = sequence<character<'.'>, lex_zero_prefixable_int>;
using lex_exponent_part = sequence<either<character<'e'>, character<'E'>>,
maybe<lex_sign>, lex_zero_prefixable_int>;
using lex_float = either<lex_special_float,
sequence<lex_dec_int, either<lex_exponent_part,